12,75gio:2,5=5,1

vi 12,75:2.5=5,1

vẽ hình đi

khoang cach giua hai so la:

2-1=1

so so hang la:

(25-1):1+1=25

day so co so so hang la:

(25+1)x25:2=25(so)

rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

\(\sqrt{a}-\dfrac{4}{\sqrt{a}}=\dfrac{a-4}{\sqrt{a}}\) (a>0)

ghmkxcvkifrtgic9frtgiodfi9idf

nhanh lên mình gấp lắm rồi

ban nham roi day la toan lop 5 chu

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